Invent a Backscratcher from Everyday Materials
Being able to recognize a problem and design a potential solution is the first step in the development of new and useful products. In this activity, students create devices to get "that pesky itch in the center of your back." Once the idea is thought through, students produce design schematics (sketches). They are given a variety of everyday materials and recyclables, from which they prototype their back-scratching devices.
Students make their own backscratchersCopyright Wikimedia Commons http://upload.wikimedia.org/wikipedia/commons/e/e3/Backscratchers.jpg
When engineers design products, they must make sure that they meet the desired functions, as well as consider other important aspects of the designs for the users. Beyond being functional, in many cases the product must also be easy or comfortable to use, and aesthetically pleasing. Engineers also take into consideration material and labor costs, durability to withstand intended use, and efficient material use in manufacturing.
After this activity, students should be able to:
- Use creativity and everyday materials to build something useful.
- Utilize designs and sketches in creating a product.